John Hopkins University scientists are currently working on what they're calling "micrograbbers" made of hydrogel and stiff polymers. Someday, they hope to send these tiny objects into your body to perform procedures that might otherwise be invasive.

As we're bombarded with emails, tweets and status updates, it's easy to feel like slaves to the gadgets in our lives. The advantages of being connected are great, but you don't have to be trapped in the clutches of connectivity.